The first line is possibly about Pope Pius VII, who came into conflict with Napoleon I. On the night of 6.07.1809 General Etienne arrested the pontiff.

The second line is about Bonaparte's abdication in 1815 and the appointment of a young son, whom he loved very much, as his successor.

3 line. At the time of his abdication, Napoleon II had not lived in France for 2 years. He never ruled, and in 1832, apparently, was killed (4 line). Bastards were those who had only one of the parents of royal blood. Only the mother of Napoleon II came from the royal family.

After the exile of the emperor, the monarchy was restored in France by initiative of Alexander I. This entailed changes in state institutions and a change of personnel.

Linkage with other quatrains: 8.32 "Napoleon II"

Decoding of the number 5.15. If 5 to flip into 2 (215), 200-15 = 185, 1 to put before 5, then we get 1815 -year of Bonaparte's final exile.

Quatrain 3.96* Duke of Berry

Chef de Fossan aura gorge couppee,

Par le ducteur du limier & leurier:

La fait pare par ceux du mont Tarpee,

Saturne en leo treziesme Feurier.

The Chief of Fossano will have his throat cut

By the leader of the bloodhound and greyhound:

The deed executed by those of the Tarpeian Rock,

Saturn in Leo February 13.